Finding the Fourth Proportional to 117,830.03, 162,607.38 and 64,115.31

Step by Step Solution

1. Step 1: Write the proportion equation
   117,830.03 : 162,607.38 = 64,115.31 : x
2. Step 2: Convert to fraction form
   117,830.03/162,607.38 = 64,115.31/x
3. Step 3: Cross multiply
   117,830.03x = 162,607.38 × 64,115.31
4. Step 4: Simplify right side
   117,830.03x = 10,425,622,256.41
5. Step 5: Solve for x
   x = 10,425,622,256.41/117,830.03
6. Step 6: Final answer
   x = 88,480.18